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<head><meta charset="utf-8"><title>check-in 2021-07-19 · edition 2021 · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/index.html">edition 2021</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html">check-in 2021-07-19</a></h3>

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<a name="246448476"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448476" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448476">(Jul 19 2021 at 12:34)</a>:</h4>
<p>Well, let me start by doing a sweep of the items</p>



<a name="246448544"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448544" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448544">(Jul 19 2021 at 12:35)</a>:</h4>
<h1>Prelude collision lint: invalid suggestion for T::from_iter when T is generic.</h1>



<a name="246448549"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448549" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448549">(Jul 19 2021 at 12:35)</a>:</h4>
<p>Got a volunteer, but no PR yet that I know of</p>



<a name="246448611"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448611" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448611">(Jul 19 2021 at 12:35)</a>:</h4>
<p>(as I said before, I won't be able to participate in this check-in for the next hour, but I suppose I can come back later and add my updates)</p>



<a name="246448624"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448624" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448624">(Jul 19 2021 at 12:35)</a>:</h4>
<p>(that's what I figured, I'd get the "rote part" done)</p>



<a name="246448696"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448696" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448696">(Jul 19 2021 at 12:36)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116009">nikomatsakis</span> <a href="#narrow/stream/268952-edition-2021/topic/check-in.202021-07-19/near/246448549">said</a>:</p>
<blockquote>
<p>Got a volunteer, but no PR yet that I know of</p>
</blockquote>
<p>they also didn't respond to my ping; we may want to take this over at some point, not sure.</p>



<a name="246448705"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448705" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448705">(Jul 19 2021 at 12:36)</a>:</h4>
<p>For now I'll leave another comment!</p>



<a name="246448765"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448765" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Mara <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448765">(Jul 19 2021 at 12:37)</a>:</h4>
<p>i don't think we need to block the crater run on it. there's probably not much code that would run into this problem</p>



<a name="246448788"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448788" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448788">(Jul 19 2021 at 12:37)</a>:</h4>
<p>That's what I was wondering, just how <em>urgent</em> is this</p>



<a name="246448809"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448809" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448809">(Jul 19 2021 at 12:37)</a>:</h4>
<p>The question to my mind is more whether it blocks us from starting the "public test" announcement</p>



<a name="246448811"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448811" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448811">(Jul 19 2021 at 12:37)</a>:</h4>
<p>probably not</p>



<a name="246448842"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448842" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Mara <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448842">(Jul 19 2021 at 12:37)</a>:</h4>
<p>yeah</p>



<a name="246448853"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448853" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448853">(Jul 19 2021 at 12:38)</a>:</h4>
<p>In that case, we can let it slide a bit.</p>



<a name="246448899"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448899" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448899">(Jul 19 2021 at 12:38)</a>:</h4>
<p>we should move columns though</p>



<a name="246448926"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448926" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448926">(Jul 19 2021 at 12:38)</a>:</h4>
<p>I moved it to "stable blockers"</p>



<a name="246448941"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448941" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448941">(Jul 19 2021 at 12:38)</a>:</h4>
<p>OK</p>
<h1>Documentation</h1>



<a name="246448978"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246448978" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246448978">(Jul 19 2021 at 12:39)</a>:</h4>
<p>We have <a href="https://github.com/rust-lang/edition-guide/pulls">3 open PRs</a> on the edition-guide</p>



<a name="246449025"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246449025" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246449025">(Jul 19 2021 at 12:39)</a>:</h4>
<p>Looks like <a href="https://github.com/rust-lang/edition-guide/issues/255">rust-lang/edition-guide#255</a> is ready to merge, but I'm going to give it a quick skim</p>



<a name="246449130"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246449130" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246449130">(Jul 19 2021 at 12:40)</a>:</h4>
<p>This looks really great, <span class="user-mention" data-user-id="120518">@Eric Huss</span></p>



<a name="246450399"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450399" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450399">(Jul 19 2021 at 12:53)</a>:</h4>
<p>(sorry, got distracted)</p>



<a name="246450454"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450454" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450454">(Jul 19 2021 at 12:54)</a>:</h4>
<p>looks like the other bugs are largely assigned to <span class="user-mention" data-user-id="224872">@rylev</span></p>



<a name="246450486"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450486" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450486">(Jul 19 2021 at 12:54)</a>:</h4>
<p>exceptions:</p>



<a name="246450507"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450507" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450507">(Jul 19 2021 at 12:54)</a>:</h4>
<h1>prefix syntax</h1>
<p>has PR  <a href="https://github.com/rust-lang/edition-guide/issues/249">edition-guide#249</a>   by <span class="user-mention" data-user-id="239881">@Josh Triplett</span>, <span class="user-mention" data-user-id="224872">@rylev</span> asked whether assistance is needed</p>



<a name="246450565"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450565" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450565">(Jul 19 2021 at 12:55)</a>:</h4>
<h1>cargo resolver changes <a href="https://github.com/rust-lang/edition-guide/issues/239">edition-guide#239</a></h1>
<p>Assigned to <span class="user-mention" data-user-id="120518">@Eric Huss</span></p>



<a name="246450653"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450653" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450653">(Jul 19 2021 at 12:56)</a>:</h4>
<h1>prepare PR that will "dry run" the crater migration <a href="https://github.com/rust-lang/rust/issues/85895">#85895</a></h1>



<a name="246450685"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450685" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450685">(Jul 19 2021 at 12:56)</a>:</h4>
<p><span class="user-mention" data-user-id="120518">@Eric Huss</span> <a href="https://github.com/rust-lang/rust/issues/85895#issuecomment-881732680">prepared a hacked cargo</a> that should work <span aria-label="tada" class="emoji emoji-1f389" role="img" title="tada">:tada:</span></p>



<a name="246450753"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450753" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450753">(Jul 19 2021 at 12:57)</a>:</h4>
<p>Discussed in <a class="stream-topic" data-stream-id="268952" href="/#narrow/stream/268952-edition-2021/topic/crater.20run">#edition 2021 &gt; crater run</a> , I think</p>



<a name="246450884"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450884" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450884">(Jul 19 2021 at 12:58)</a>:</h4>
<p>OK, that's everything apart from stabilization</p>



<a name="246450892"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246450892" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246450892">(Jul 19 2021 at 12:58)</a>:</h4>
<p>Looking solid</p>



<a name="246458121"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458121" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458121">(Jul 19 2021 at 14:00)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116009">nikomatsakis</span> <a href="#narrow/stream/268952-edition-2021/topic/check-in.202021-07-19/near/246450454">said</a>:</p>
<blockquote>
<p>looks like the other bugs are largely assigned to <span class="user-mention silent" data-user-id="224872">rylev</span></p>
</blockquote>
<p>I should have the docs done by today.</p>



<a name="246458144"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458144" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458144">(Jul 19 2021 at 14:00)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> does this mean we're good for the blog post to go live tomorrow?</p>



<a name="246458190"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458190" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458190">(Jul 19 2021 at 14:01)</a>:</h4>
<p>The only question was your desire to revisit stable blockers and assess how realistic the September stabilization date is</p>



<a name="246458228"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458228" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458228">(Jul 19 2021 at 14:01)</a>:</h4>
<p>Ok I'll start a new thread for looking through stablization</p>



<a name="246458273"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458273" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458273">(Jul 19 2021 at 14:01)</a>:</h4>
<p>Or I guess we can just do it here.</p>



<a name="246458471"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458471" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458471">(Jul 19 2021 at 14:03)</a>:</h4>
<p><strong>Tracking Issue for edition-dependent IntoIterator for arrays</strong> (<a href="https://github.com/rust-lang/rust/issues/84513">#84513</a>)<br>
We have an outstanding todo to break this issue up into smaller issues to make tracking easier</p>



<a name="246458629"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458629" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458629">(Jul 19 2021 at 14:04)</a>:</h4>
<p>A quick scan - it looks like nothing big is left to do (mostly docs and some lint improvements).</p>



<a name="246458882"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458882" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458882">(Jul 19 2021 at 14:06)</a>:</h4>
<p><strong>prepare PR that will "dry run" the crater migration</strong> (<a href="https://github.com/rust-lang/rust/issues/85895">#85895</a>)<br>
Since the crater run is good to go and it's hard to predict how much fall out will come from it, I don't think we should push back stabilization due to it.</p>



<a name="246458928"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246458928" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246458928">(Jul 19 2021 at 14:06)</a>:</h4>
<p>We have all of August to address issues we find from it which seems reasonable.</p>



<a name="246459138"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459138" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459138">(Jul 19 2021 at 14:08)</a>:</h4>
<p><strong>Prelude collision lint: invalid suggestion for T::from_iter when T is generic.</strong> (<a href="https://github.com/rust-lang/rust/issues/86940">#86940</a>) <br>
Should hopefully be fixed this week (we should reassign by Wednesday if no PR has been created by then)</p>



<a name="246459289"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459289" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459289">(Jul 19 2021 at 14:09)</a>:</h4>
<p><strong>document and test the precise span that triggers edition-dependent behavior</strong> <a href="https://github.com/rust-lang/rust/issues/86539">#86539</a><br>
<span class="user-mention" data-user-id="116009">@nikomatsakis</span> this seems pretty straight-forward but a bit open ended. Any concern about getting this done before September?</p>



<a name="246459433"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459433" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459433">(Jul 19 2021 at 14:10)</a>:</h4>
<p>Even more importantly, who can do that work? No one is currently assigned</p>



<a name="246459582"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459582" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459582">(Jul 19 2021 at 14:11)</a>:</h4>
<p><strong>Tracking Issue for RFC 3101: Reserved Prefixes</strong> <a href="https://github.com/rust-lang/rust/issues/84978">#84978</a><br>
Similar story here. The work is pretty straight-forward - we just need someone to take it over the finish line. I believe <span class="user-mention" data-user-id="125270">@scottmcm</span> was working on this before. Perhaps they can do the stabilization work?</p>



<a name="246459764"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459764" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459764">(Jul 19 2021 at 14:13)</a>:</h4>
<p><strong>Stabilize "force warn" option</strong> <a href="https://github.com/rust-lang/rust/issues/86516">#86516</a><br>
This should be straight-forward, and I have no doubt I'll be able to finish this in the coming weeks.</p>



<a name="246459940"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459940" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459940">(Jul 19 2021 at 14:14)</a>:</h4>
<p><strong>Write specification for Capture Analysis</strong> <a href="https://github.com/rust-lang/project-rfc-2229/issues/53">#53</a><br>
<span class="user-mention" data-user-id="116009">@nikomatsakis</span> what's the estimate for this work item? It seems like it should also be doable before september, no?</p>



<a name="246459964"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246459964" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246459964">(Jul 19 2021 at 14:14)</a>:</h4>
<p>That's everything we have tracked so far. <span class="user-mention" data-user-id="310399">@Mara</span> <span class="user-mention" data-user-id="116009">@nikomatsakis</span>  Anything strike you as missing?</p>



<a name="246460090"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246460090" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246460090">(Jul 19 2021 at 14:15)</a>:</h4>
<p>There's some cleanup we need to do in the edition guide to switch the narrative from 2018 to 2021. There doesn't seem to be an issue for this. I can create one.</p>



<a name="246460724"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246460724" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> rylev <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246460724">(Jul 19 2021 at 14:20)</a>:</h4>
<p><strong>Re: the blog</strong>: We then need someone to work with the team on merging the blog post tomorrow (and getting the Rust Twitter handle to tweet about it)</p>



<a name="246469100"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246469100" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246469100">(Jul 19 2021 at 15:20)</a>:</h4>
<p><span class="user-mention silent" data-user-id="224872">rylev</span> <a href="#narrow/stream/268952-edition-2021/topic/check-in.202021-07-19/near/246459940">said</a>:</p>
<blockquote>
<p><strong>Write specification for Capture Analysis</strong> <a href="https://github.com/rust-lang/project-rfc-2229/issues/53">#53</a><br>
<span class="user-mention silent" data-user-id="116009">nikomatsakis</span> what's the estimate for this work item? It seems like it should also be doable before september, no?</p>
</blockquote>
<p>Yes, we've basically done this already.</p>



<a name="246469141"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246469141" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246469141">(Jul 19 2021 at 15:21)</a>:</h4>
<p><span class="user-mention silent" data-user-id="224872">rylev</span> <a href="#narrow/stream/268952-edition-2021/topic/check-in.202021-07-19/near/246460724">said</a>:</p>
<blockquote>
<p><strong>Re: the blog</strong>: We then need someone to work with the team on merging the blog post tomorrow (and getting the Rust Twitter handle to tweet about it)</p>
</blockquote>
<p>Perhaps <span class="user-mention" data-user-id="116122">@simulacrum</span> can manage that?</p>



<a name="246470931"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246470931" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246470931">(Jul 19 2021 at 15:32)</a>:</h4>
<p><span class="user-mention silent" data-user-id="224872">rylev</span> <a href="#narrow/stream/268952-edition-2021/topic/check-in.202021-07-19/near/246459289">said</a>:</p>
<blockquote>
<p><strong>document and test the precise span that triggers edition-dependent behavior</strong> <a href="https://github.com/rust-lang/rust/issues/86539">#86539</a><br>
<span class="user-mention silent" data-user-id="116009">nikomatsakis</span> this seems pretty straight-forward but a bit open ended. Any concern about getting this done before September?</p>
</blockquote>
<p>Hmm. Not especially, but we do need to decide who will do it.</p>



<a name="246471009"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246471009" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246471009">(Jul 19 2021 at 15:33)</a>:</h4>
<p>Looks like <span class="user-mention" data-user-id="310399">@Mara</span> <a href="https://github.com/rust-lang/rust/issues/86539#issuecomment-865918024">did a bunch of research here</a></p>



<a name="246471037"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246471037" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246471037">(Jul 19 2021 at 15:33)</a>:</h4>
<p>I'll have to read through that in detail</p>



<a name="246477158"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246477158" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246477158">(Jul 19 2021 at 16:21)</a>:</h4>
<p>I can take a look at the blog</p>



<a name="246477177"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246477177" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246477177">(Jul 19 2021 at 16:21)</a>:</h4>
<p>Not sure if this is the one I had reviewed before</p>



<a name="246477373"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246477373" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246477373">(Jul 19 2021 at 16:23)</a>:</h4>
<p>Hm it looks ok I think</p>



<a name="246477790"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246477790" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246477790">(Jul 19 2021 at 16:27)</a>:</h4>
<p>I've asked in core and a ping tomorrow morning would be great</p>



<a name="246524794"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/268952-edition%202021/topic/check-in%202021-07-19/near/246524794" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Josh Triplett <a href="https://rust-lang.github.io/zulip_archive/stream/268952-edition-2021/topic/check-in.202021-07-19.html#246524794">(Jul 19 2021 at 22:47)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> quick update: now that I'm done with the presentation for CTCFT, I'll work on reserved prefix edition guide material shortly.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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